| Acronym | Meaning |
| GSA | General Services Administration |
| ATC | Air Traffic Control |
| LBJSC | Lydon B Johnson Space Center |
| AU | Astronomical Unit |
| CCB | Change Control Board |
| CDF | Common Data Format |
| GCSS | GWEX Cloud Systems Studies |
| SMA | Segnalamento Marittimo Ed Aereo |
| CAAC | Civil Aviation Administration Of China |
| ICC | Instrument Control Center |